# Accident 19900909038379A: Bell 206B, Kaknohak, AK, September 9, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 9, 1990, 14:00 local time
- Place: Kaknohak, AK
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Rotorcraft external load (Part 133)
- Operator: ERAA
- Location: 59.8493° N, 154.5598° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=59.8493&lon=-154.5598&mi=10
- Aircraft: N385EH, a cancelled registration (https://openairdocs.org/deregistered/N385EH-1990-11-29) (OpenAirDocs)
- Registry model: Bell 206B (registry code 1181511, https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Reported make and model: BELL 206B
- Reported engine: ALLSN 250C20B
- Fatal injuries: 0
- Pilot flight hours: 3,570 total, 1,775 in this make and model, 144 in the last 90 days
- NTSB investigation: [NTSB ANC90LA170](https://openairdocs.org/ntsb/ANC90LA170) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900909038379A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

LOST POWER. DROPPED SLING LOAD. AUTOROTATED. HARD LANDING. AIR COMPRESSOR SCROLL TEE TUBE ASSEMBLY WORN AND CRACKED

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ANC90LA170](https://openairdocs.org/ntsb/ANC90LA170), Sep 9, 1990: Bell 206B (N385EH), Kokhanok, AK, substantial damage. Probable cause: THE FAILURE OF THE COMPRESSOR END OF THE AIR COMPRESSOR SCROLL TO TEE TUBE ASSEMBLY CAUSING THE ENGINE TO SPOOL DOWN. THE FORCED LANDING IN ENEVEN, UNPREPARED, AND LIGHTLY FORESTED TERRAIN WERE…

## Other reports on N385EH (1)

Matched to the same aircraft by N-number and date.

- [Accident 19850419015859A](https://openairdocs.org/incident/19850419015859A), Apr 19, 1985: Bell 206B (N385EH), Valdez, AK, Substantial damage. Engine lost power on approach at 125 feet. Autorotated with main blades contacting tailboom. Low RPM warning.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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